Last reviewed: 2026-09-03 • Editorial Standards

Japanese Greens Ranked by Purine Content

Evidence-based comparison — data from USDA+ODS-NIH PURINE DATABASE Release 2 (March 2025)

Lowest Purine Japanese Greens

#1mustard spinach, (komatsuna), mature, raw10.5 mg
#2Komatsuna Leaf10.6 mg
#3honewort11.5 mg
#4mizuna (potherb mustard)20.3 mg
#5Komatsuna Young leaf39.0 mg
#6mustard spinach, (komatsuna), young, raw39.1 mg
#7coriander39.4 mg
#8leek, japanese (negi), raw41.4 mg
#9Japanese leek (negi)41.4 mg
#10Perilla leaves (shiso)41.4 mg

Highest Purine Japanese Greens

#12honewort11.5 mg
#11mizuna (potherb mustard)20.3 mg
#10Komatsuna Young leaf39.0 mg
#9mustard spinach, (komatsuna), young, raw39.1 mg
#8coriander39.4 mg
#7Perilla leaves (shiso)41.4 mg
#6Japanese leek (negi)41.4 mg
#5leek, japanese (negi), raw41.4 mg
#4perilla leaves, shiso, raw41.5 mg
#3garland chrysanthemum47.1 mg

Category Average: 31.9 mg/100g

The average across 12 Japanese Greens foods with lab-measured data. Foods below this average are better-than-typical choices within this category.

How to Use This Ranking

The purine ranking is sorted from lowest to highest. Rank #1 is the lowest-purine food in the category. Foods in the top half (above median) should be consumed with more awareness of portion and frequency. The difference between adjacent ranks varies: in some categories, rank #5 and #10 might be only 10 mg apart; in others, the gap can be 100+ mg. Always check the actual milligram value, not just the position. Rankings do not account for fructose or alcohol — use individual food pages for a complete risk assessment.

ACR 2020 Guideline Context

The American College of Rheumatology recommends that gout patients focus on purine awareness rather than complete food group elimination. Within any category, there is a wide purine range. The goal is to shift toward lower-purine choices within categories you already eat, rather than eliminating entire food groups. This ranking helps you identify which specific items to prioritize and which to limit.

Japanese guidelines recommend under 400 mg of total dietary purines per day. Using this ranking, you can estimate how much of budget each food uses per typical serving.

How This Comparison Is Built

This comparison scores every food on three independent axes — purine content, fructose, and alcohol. Purine figures rely on the USDA+ODS-NIH PURINE DATABASE Release 2 (March 2025) and Kaneko et al. (Biol Pharm Bull 37(5):709-721, 2014, PMID: 24553148); fructose data comes from USDA SR28. Ratings follow ACR 2020: Safe when purine is under 50 mg and fructose under 2 g with no alcohol, Moderate between these, Avoid beyond, or whenever alcohol appears. Per-food data quality is flagged T1 (lab-measured), T2 (measured plus consensus), or T3 (category estimate).

This comparison is provided for informational purposes only and does not constitute medical advice. Individual tolerance to purines and fructose varies. Consult a healthcare professional for personalized dietary guidance. Last reviewed: 2026-09-03.

Frequently Asked Questions

Are Japanese leafy greens good for gout?
most are low to moderate in purines. Among 12 Japanese greens entries with measured values, komatsuna leaf measures about 10.5 mg/100g and honewort (mitsuba) about 10.6 mg/100g, while garland chrysanthemum reaches 47.1 mg/100g. All fit comfortably in a gout-friendly diet, and they add potassium and folate that support overall metabolic health.
Which Japanese green is lowest in purines?
Komatsuna leaf measures lowest in our database at about 10.5 mg/100g, with honewort around 10.6 mg/100g. The higher end is garland chrysanthemum (shungiku) at about 47.1 mg/100g — still moderate and fine in hot pot portions. Younger komatsuna leaves run higher than mature leaves, an example of how the same plant can vary with harvest stage.
Can I eat shiso and negi with gout?
Yes. Perilla (shiso) measures about 41.5 mg/100g and Japanese leek (negi) about 41.4 mg/100g in our database — moderate levels, eaten in garnish-sized amounts. Shiso is used a few leaves at a time and negi as an aromatic, so the actual purine contribution per meal is small. Both are safe choices for people managing uric acid.